Xinxue Liu

Persistence of immune responses 5 years after vaccination with a single dose of typhoid conjugate vaccine (TCV) in Nepalese children

Background A single-dose typhoid conjugate vaccine (TCV) has been recommended in endemic settings. Here we report the 5-year immunogenicity results post a single dose of TCV in Nepal. Methods We conducted a participant- and observer-blinded randomised trial (RCT) in Lalitpur, Nep...

Emergence of novel SARS-CoV-2 variants keeps slowing down

Abstract Background Although COVID-19 pandemic has no longer been classified as an international public health emergency of concern after May 2023, multiple variants with different characteristics keep emerging. Given the complex spatial-temporal characteristics of epidemics, res...